This directory contains examples of the use of zlib and other relevant
programs and documentation.
enough.c
calculation and justification of ENOUGH parameter in inftrees.h
- calculates the maximum table space used in inflate tree
construction over all possible Huffman codes
fitblk.c
compress just enough input to nearly fill a requested output size
- zlib isn't designed to do this, but fitblk does it anyway
gun.c
uncompress a gzip file
- illustrates the use of inflateBack() for high speed file-to-file
decompression using call-back functions
- is approximately twice as fast as gzip -d
- also provides Unix uncompress functionality, again twice as fast
gzappend.c
append to a gzip file
- illustrates the use of the Z_BLOCK flush parameter for inflate()
- illustrates the use of deflatePrime() to start at any bit
gzjoin.c
join gzip files without recalculating the crc or recompressing
- illustrates the use of the Z_BLOCK flush parameter for inflate()
- illustrates the use of crc32_combine()
gzlog.c
gzlog.h
efficiently and robustly maintain a message log file in gzip format
- illustrates use of raw deflate, Z_PARTIAL_FLUSH, deflatePrime(),
and deflateSetDictionary()
- illustrates use of a gzip header extra field
gznorm.c
normalize a gzip file by combining members into a single member
- demonstrates how to concatenate deflate streams using Z_BLOCK
zlib_how.html
painfully comprehensive description of zpipe.c (see below)
- describes in excruciating detail the use of deflate() and inflate()
zpipe.c
reads and writes zlib streams from stdin to stdout
- illustrates the proper use of deflate() and inflate()
- deeply commented in zlib_how.html (see above)
zran.c
zran.h
index a zlib or gzip stream and randomly access it
- illustrates the use of Z_BLOCK, inflatePrime(), and
inflateSetDictionary() to provide random access
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